[obvious] Remove -m32 from testcase

[Michael Matz]

Hi,

gcc.dg/graphite/run-id-pr47593.c (included for PR47653) hardcodes -m32 in 
dg-options.  That's not supported everywhere and the testcase is just as 
valid without -m32.  If it was the case that it needed -m32 for breaking 
that would be catched by normal multilib testing.

Committed as obvious as r177666.


Ciao,
Michael.
        * gcc.dg/graphite/run-id-pr47593.c: Remove -m32.

Index: testsuite/gcc.dg/graphite/run-id-pr47593.c
===================================================================
--- testsuite/gcc.dg/graphite/run-id-pr47593.c  (revision 177601)
+++ testsuite/gcc.dg/graphite/run-id-pr47593.c  (working copy)
@@ -1,4 +1,4 @@
-/* { dg-options "-O2 -fgraphite-identity -m32" } */
+/* { dg-options "-O2 -fgraphite-identity" } */

 struct Foo {
   int **p;